Description: 用matlab仿真ofdm在wlan中的应用的源代码，此源代码适用于开发ofdm无线局域网的工程技术人员以及研究生。-simulation using Matlab OFDM wireless LAN in the application's source code, the source code applicable to the development of OFDM wireless LAN engineering and technical personnel and graduate students. Platform: |
Size: 130703 |
Author:wgz |
Hits:
Description: ofdm结合2x2的mimo结构的WLAN环境数据传输仿真程序matlab版，包括信道估计和同步等模块。-OFDM combine 2x2 MIMO structure of the WLAN environment data transfer simulation program Matla b version, including channel estimation and synchronization module. Platform: |
Size: 28327 |
Author:尹浩 |
Hits:
Description: 用matlab仿真ofdm在wlan中的应用的源代码，此源代码适用于开发ofdm无线局域网的工程技术人员以及研究生。-simulation using Matlab OFDM wireless LAN in the application's source code, the source code applicable to the development of OFDM wireless LAN engineering and technical personnel and graduate students. Platform: |
Size: 130048 |
Author:wgz |
Hits:
Description: ofdm结合2x2的mimo结构的WLAN环境数据传输仿真程序matlab版，包括信道估计和同步等模块。-OFDM combine 2x2 MIMO structure of the WLAN environment data transfer simulation program Matla b version, including channel estimation and synchronization module. Platform: |
Size: 27648 |
Author:尹浩 |
Hits:
Description: WLAN仿真－发送机
wlan No Comments
设置完系统参数后，开始产生发送数据。
1. 产生随机的发送bit（tx_bits），这里不考虑信道编码。
2. QAM映射
3. 将数据映射到不同载波，形成OFDM符号
4. 产生pilot，并将pilot插入OFDM符号中
5. 加入dc和guard子载波
6. 进行ifft，将频域信号变到时域，并加入循环前缀
7. 对信号进行overlap window
8. 在时域产生short preamble
9. 在时域产生long preamble
10. 将preamble和数据符号组成packet
11. 升采样
得到信道传输的数据Tx_signal_up
具体程序见附件 wlan_transmitter.m-WLAN Simulation- wlan No Comments transmitter system parameters set finished, the beginning to have to send data. 1. Have sent random bit (tx_bits), here does not consider channel coding. 2. QAM mapping 3. The data is mapped to a different carrier to form OFDM symbols 4. Have a pilot, and pilot inserted OFDM symbols 5. Adding dc and guard subcarriers 6. To carry out ifft, will change the frequency domain signal to time domain, and add cyclic prefix 7. the signals overlap window8. In the time domain have a short preamble9. In the time domain have a long preamble10. the preamble and data symbols packet11. or sampling received data transmission channel Tx_signal_up specific procedures see Annex wlan_transmitter.m Platform: |
Size: 1024 |
Author:福东方 |
Hits:
Description: 本文在分析移动无线信道衰落特性的基础上,阐述了OFDM系统的基本原理,主要研究了OFDM通信系统中的基于导频符号的信道估计问题,分析了几种经典的信道估计算法以及相关的关键技术环节。 在此基础上介绍了OFDM技术在现实中的一个应用——WLAN IEEE802.11a系统模型,利用Matlab仿真软件完成OFDM系统信号生成、噪声生成、导频插入、循环前缀、调制、解调等部分的设计,最后结合计算机仿真对系统关键技术(导频、循环前缀、估计算法)的有效性和可行性进行了全面的分析与比较。适合matlab研究-Based on the analysis of mobile channel fading characteristics based on the OFDM system on the basic principles of research in the OFDM communication system of the pilot symbols based on channel estimation problem, an analysis of several classical channel estimation algorithm and the associated key technical links. On this basis, introduced OFDM technology in a practical application- WLAN IEEE802.11a system model, using Matlab simulation software to complete OFDM signal generation, noise generation, pilot insertion, cyclic prefix, modulation, demodulation and other parts of the design, the final combination of computer simulation of the system of key technologies (pilots, cyclic prefix, it is estimated that algorithm) the effectiveness and feasibility of a comprehensive analysis and comparison. Suitable for research matlab Platform: |
Size: 1339392 |
Author:赵洪森 |
Hits:
Description: 这是一个OFDM基于WLAN系统的matlab仿真程序，源代码程序采用了导频符号辅助的OFDM调制机制，采用这种机制对系统误码率进行了仿真。-This is a matlab simulation cede of OFDM based WLAN system used in ETSI BRAN,IEEE 802.11 and ABIB MMAC projects. The program code adopted the pilot symbol-aided OFDM modulation scheme and evaluated the BER performance in the scheme. Platform: |
Size: 24576 |
Author:李正鹏 |
Hits:
Description: 我再论坛找了很多OFDM的代码和文章,但总有遗患,为什么呢原因是大部分只有简单的映射,IDFTDFT变换等等,但主要的同步和信道估计去没有人提出来,甚至做出来..
现在我终于找到了一份,它以FUNCTION的形式,再现了OFDM映射,IDFTDFT,同步(时间频率同步)和信道估计,以及频率偏移的估计等一系列代码.-The simulator GUI is started with command ui_start in Matlab command window.
WLAN simulation starts by clicking the Start Simulation button in the GUI window.
WLAN simulation can be terminated, before set number of packets have been reached by pressing control-C . Platform: |
Size: 33792 |
Author:yc |
Hits:
Search - ofdm WLAN matlab simulation